Dear all I am estimating the effect of living in an HIV household on the probability of attending secondary school. I am using a simple probit equation as well as estsimp probit and Stata 9.2. After reading King, Tom and Wittenberg (2000), I am relying on graphing predicted probabilities and taking into account confidence intervals in presenting/interpreting results. I am trying to generate a graph similar to Figure 1 (Probability of voting by age) in the aforementioned paper. After simple probit I generate a graph using prgen and it works. The problem is that after estsimp probit, when I use the following command: graph plo phi AgeYaxis, s(ii) c(||) I get the following message indicating that I am using Stata7 syntax: plograph_g.new phi ageaxis, s(ii) c(||): class member function not found If I do the following, I get same graph as prgen but i still do not get the confidence intervals to plot gr7 plo phi AgeYaxis, s(oo) c(ll) ylabel(0(.1)1) Any suggestions. Attached is my syntax and graphs best Moumie